diff --git a/requirements.txt b/requirements.txt
index c3abe40..0a3fa8e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ py==1.8.0
 # requires Python 3.5+
 #pytest==5.2.1
 pytest==4.6.9
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.28.2
 requests-kerberos==0.12.0
 six==1.12.0